I'll wager u don't use a 60sec clock having to do all those calculations..........!!
Actually, I can calculate it very quick (quickly?).
There maybe a lot of words written on how it's done, but it reality (like WGT is real!) it's a fast calculation. Like I wrote, I use N,S,E,W,NE,SE,SW,NW only. When you start with NNE, NNW.... time to call on Nerdyguy with the pocket protector and taped glasses for answers.